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发明名称	MAIN BURSTING TOOL
摘要
申请公布号	GB8511646(D0)	申请公布日期	1985.06.12
申请号	GB19850011646	申请日期	1985.05.08
申请人	BRITISH GAS CORPORATION	发明人
分类号	E21B7/30;F16L55/165	主分类号	E21B7/30
代理机构		代理人
主权项
地址

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